http://www.rosarioconnection.com/However as you can see, it is still not quite right. I have tried to change the size of logo so that it doesn't leave me so much empty space or tried to remove all the space around the logo but nothing worked.I am not sure how to fix it...Could someone help me please?

I am also not finding anything that resembles "welcomeheading" and also have not found "background: url('img/header.jpg') no-repeat bottom left;" as mentioned below by Wayne so I'm wondering if I am looking in the wrong place. Where do i find the location to paste in my image? so far i have gone into appearance in my wordpress dashboard and clicked on "editor" then clicked on "stylesheet (style.css)" and it is not there....I've painstakingly scrolled through 5 times. I've also looked under "header.php" but nothing.Thanks!

I'm proud to tell you that I have found the ultimate way to change the header. Please visit my blog http://www.blog3d.dk/blog. If you like what you see and want to know how I did it, post a comment in the forum, and I will make a small tutorial. Give me a couple of days. ( The blog is at the time a template with a little content, but more will come. I have translated the theme into danish, so it will be wolapyk for most of you)Best regardsClaus